SEROTONIN


Meaning of SEROTONIN in English

ser ‧ o ‧ to ‧ nin /ˌserəˈtəʊnɪn $ -ˈtoʊ-/ BrE AmE noun [uncountable] technical

[ Date: 1900-2000 ; Origin: serum + tonic + -in ]

a chemical in the body that helps carry messages from the brain and is believed to make you feel happy

Longman Dictionary of Contemporary English.      Longman - Словарь современного английского языка.